Recent and ongoing efforts have changed many properties to be stored
contiguously in memory, e.g. mesh attributes. This patch updates
rna_raw_access to make use of this and copy the entire contiguous block
of memory when the property is stored contiguously.
This is faster and scales much better with larger arrays.
Pull Request: https://projects.blender.org/blender/blender/pulls/116015
fdb56c4e8d